Weatherproof covering.



L. F. LINDLEY.

l WBATHERPROOF GOVBRING. APPLICATION PIL'BD DEO.23,1910.

1,040,706. Patented Oct. 8, 1912.

lll

LOWELL 1F. LINJJLEY, OF CHICAGO, ILLINOIS.

WEATHER/PROOF COVERING.

incomes.

Speccaton of Letters Patent.

Patented (let. el, 19125.

Application led December 23, 1910. vSerial No. 599,032.

To all whom, it ma/y concern:

Be it known that I, LOWELL F. LiN-nLnY, a resident .of Chicago, Vin thecounty of Cook and State of Illinois, have invented certain new anduseful Improvements in Weatherproof Coverings, of which the fol lowingis a full, clear, and exact description.

The invention relates to flexible covering, such, for example, as'isused for roofing.

In practice heretofore, various methods have been proposed for finishingflexible covering in order to give different or desired colors to theexposed side thereof, and in these methods, difficulties in causing thecoloring to adhere to or combine with the hydro-earbon compound withwhich the covering is impregnated, have been met by applying a facingconsisting of a pigment, a resinous body and a fatty body, the color ofthe pigment predominating. One of the objections to this process ofmanufacturing rooting was, that the color was not visible until afterexposure to atmospheric influences, because the pigment, .in beingtreated or applied became coated with a lm of pitch and the film wasdestroyed by oxidation resulting from exposure. ltcsultantly, theultimate color was not visible when the roofing was lirst applied. loovercome this objection to that process, it has been proposed to apply atemporary facing of the same color as the pigment in the permanentfacing, which would give tothe covering the samelappearance as theultimate color or appearance of the outer face of the covering after thesame had been exposed to atmospheric influences.

The present invention designs to provide an improved weatherproofcovering, which may be readily colored in such a manner that thepermanent color will be visible at the outset and in which the necessityof applying a temporary facing or coat will be avoided.

A still further object is to provide an improved lexible and water-proofcovering which may have its 1exposed face of any desired color orpattern and which may be manufactured without the necessity of mixingthe coloring matter or pigment with the pitch or hydrocarbon.

A still further object of the invention is to provide a water-proofcovering which may be oriven any desired color, as distinguishe from thecolor of those pigments 'which will flux with a'resinous and a fattybody and such colors as are attained hy mixing the pigment with a fluxcontaining pitch or similar ingredients.

In other words, the invention designs to provide an improved .coveringwhich may bc given any desired color or pattern.

The invention further designs to provide a lflexible weather-proofcovering, which will have increased tensile strength and which may besharply llexed in applying it to a roof, without breaking.

In the drawings: Figure l is a perspective of u piece of the-improvedcovering manufactured in accordance with the improved method, the fabricbeing folded back for clearness in illustration, and Fig. f2 is asection of the covering.

The base of the Aflexible covering consists of any suitable materialsuch as felt, made of either woolen, cotton or straw-material, which isfirst impregnated with a waterproofing con'xpound, such as liquid tar orany of the end series of hydrocarbon, commonly known as asphalte` undpitches, such as are now in common use for imprcgnating water-prodilelts 'for roofing. The felt is saturated in this compound while thelatter is hot. The next step in the process of manufacturing theimproved material consists in coating one surface only of fabric, suchas unblcached sheeting, with a compound that leaves a hard and drysurface but which is vervpliablc. This coating compound consists of asuitable vegetable oil in connection with resin or gums and of acompound which has some of the properties of rubber and may consist ofrubber and ingredients fiuxcd with rubber to make a water-proofcompound. 'llhereform in using the term rubber in the claim appendedhereto the same is to be construed to embrace any materials possessingthe characteristics of rubber. This compound is allowed to set on thesheeting.

The coating may be made any desired color by mixing with the coatingcompound, pigment of the desired color. If desired this coating may beprinted on the fabric in striped or ornamental patterns. The purpose ofthis coating is to provide a colored finish with a comparatively hardsurface on that face of the covering which will be exposed `in use. Thefollowing compound, in proportions designated by weight, will make apliable water-proof finishing coat or facing of dark red color whenapplied to the fabric: rubber, 1 part; Pontianik gum, 3 parts; para-gol,10 parts; litharge, 5 parts; Whiting, 23 parts; white rubber scrap, 20parts; and red oXid, 10 parts. The fabric with this water-proof compoundVthereon is then united to the felt by a binder coating of a hydrocarbonmixture embodying tar, resin, petroleum or any of the series ofasplialts commonly known on the market. The union of the sheeting andthe impregnated felt or base is effected by pouring on one of thesurfaces of the impregnated felt, a hot solution of this compound andthen passing the felt and coated sheeting together between a pair 0fsqueeze-rolls; which will cause the flux to unite the fabric and the im`pregnated felt by penetrating the interstices of the fabric of saidsheeting as far as said coating only. The following binding compound inproportions designated by weight, will serve to Ieff-ect a firm union ofthe fabric and the impregnated felt; gilsonite, 20 parts; petroleumpitch, 60 parts; resin, 10 parts, and maltha asphalt 10 parts.

In thecovering shown in ther-drawing, a

-designates a sheet or web of felt, b the wa` ter-proofing compound withwhich the felt is impregnated, c, the sheeting, dthe waterprooffinishing coating on the outer side only of the sheeting, and e thebinding compound for uniting the fabric and impregnated felt.' As aresult, the invention pro vides a covering which is exteriorly coatedwith an' elastic compound, which will'not be volatilized by heat andwill not be destroyed by atmospheric `conditions and which may be 0f anydesired color 0r pattern. The

A outside coating increases the water-proof qualities 0f the lcoveringand the sheeting materially adds to the tensile strength of thecovering. By employing sheeting to which the water-proofing compound .isapplied, the finishing coat ma'y be of any desired color and notnecessarily onewhich' will flux with a binder compound or ux,4

since the colored coat is applied rst to the outside only of the sheet,and the binder flux to the other side, so that while said binder is freeto penetrate the interstices of the fabric 0f the Sheet, it canpenetrate only so far as said outer coating, which will limit saidpenetration ,andyet leave said outer face of the sheet unaffected as tocolor by said binder.

The product is iexible and possesses an appearance which does notrequirev atmospheric influences to develop its color and furthermore thenecessity of providing a temporary colored facing is avoided in order tomake thecolor of the covering initially visible. By reason 0f theflexible properties of the 'finishing coat, and the increased" strengthresulting from the fabric, the cov- "ering may be sharply flexed withoutbreaking.

restricted tothe precise proportions, lngredients or practice setf0rthsince these may be modified accordingtor the productdesired,andwithin the scope of the appended l/Vhat lt claim as new and desire tosecure by Letters Patent is: y y 'p A flexible waterproof covering,compr1sing a base composed 0f a flexible materialA LOWELL 1t' LrNDLEv..Witnesses: i. i

FRED GERLACH, FRANK W. BEMM.

. The invention is not to be understood as '70 claim, without departingfrom the spirit vand scope of the invention.

